Connection Diagrams - Sunsystem BURNIT WBS Serie Manual Del Operador

When the boiler is connected to a heating system,
it is mandatory to install a 3 bar relief valve and
expansion vessel. No shut-off fittings may be installed
EN
between the relief valve, expansion vessel and boiler.
1. Due to unsealed connections
2. Due to accumulation
Condensate and tar formation may reduce
the performance and life of the heating boiler.
The temperature at the boiler inlet must not
be less than 65°C, boiler water temperature
at the outlet must be between 80°C and 85°C.
3. Due to freezing
1. Insufficient draught
2. Heating value of the fuel is too low.
3. Presence of soot deposits and/or tar on
the flue damper in the upper chamber which
prevent its tight closure.
4. Presence of soot deposits and/or tar in the
flue pipes in water jacket in the back of the
boiler
1. Hydraulic resistance is too high.
2. Air in the system
3. Inoperable circulation pump

7.5. Connection diagrams

Such connections must be performed by
*
a technician / service shop authorized for
such operations.
Diagram 8. Connection of BURNiT WBS boiler
to three-way valve /see page 58/
Diagram 9. Connection of BURNiT WBS boiler
to P type buffer tank and three-way valve /
TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
Table 5. TROUBLE-SHOOTING TABLE
Cause
of deposits.
Boiler water too hot, heating bodies too cold
see page 59/
It is mandatory to install a three-way
valve (Laddomat or similar) or a four-way
*
mixing valve which to ensure that the
temperature of the heating medium fed
into the boiler from the heating installation
is at least 65°С.
Installation damage
1. Install the connecting piping strain-free to the boiler
connections. Connect the heating installation outlet to
connection B. Connect the heating installation inlet to
connection A. Mount the cock Y included in the set.
2. It is mandatory to install a three-way thermostatic valve
which will prevent the temperature dropping under 65°C at
the inlet.
- In order to increase the operational life of the boiler it is
recommended to install a buffer vessel with capacity of 55 l
per 1 kW of installed power.
3. If the heating installation, including the piping network,
has not been built frost-proof, we recommend that you fill
the heating installation with a liquid which has low freezing
point and corrosion protection and antifreeze agent.
Output too low
1. Check chimney condition and measure draught. (must be
performed by an authorized service)
2. If the heating installation, including the piping network,
has not been built frost-proof, we recommend that you fill
the heating installation with a liquid which has low freezing
point and corrosion protection and antifreeze agent.
3. Clean the flue damper and make sure that when moving
its closing/opening lever it provides adequate sealing of the
flue gas outlet in the upper chamber. (must be performed by
an authorized service)
4. Clean the heat exchange surface of the flue pipes using
the brush from the cleaning tools set. After the cleaning is
completed, remove any soot through the inspection opening
in the back of the boiler. Must be performed by an authorized
service.
Make sure the circulation pump has been properly selected
and the heating installation is of the proper dimensions. (You
must contact your installer.)
Diagram 10. Connection of BURNiT WBS boiler
to combi tank KSC2, flat plate solar collector
PK and three-way valve /see page 60/
Diagram 11. Connection of BURNiT WBS
boiler to solar tank SON, buffer thank P, flat
plate solar collector PK and three-way valve
8
Solution
/see page 61/